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A kind of three-station electric mechanism stop bit device
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Conductive structure with automatic adjustment function
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Novel movable contact structure of three-station switch
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Novel three-station electric mechanism mechanical stopping device
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A kind of bevel gear tooth top tooling for measuring hardness structure
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It is a kind of for assembling and disassembling the auto-manual tooling of tripping spring
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Breaker spring operating mechanism characteristic regulating device and high-voltage AC breaker
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A kind of main bus structure of novel gas insulation metal closed switchgear
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Primary cut-out with gas cooling passage
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Adapter box used between electric vehicle battery pack and high-voltage power distribution box
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A kind of high-tension distribution box for electric vehicle
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